Borrowing it
Nothing to install: this file belongs to hampsterx/claude-mcp-bridge. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/hampsterx/claude-mcp-bridge/master/AGENTS.mdgit clone --depth 1 https://github.com/hampsterx/claude-mcp-bridgeWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/hampsterx/claude-mcp-bridge/agents-md)<a href="https://agentmods.dev/instructions/hampsterx/claude-mcp-bridge/agents-md"><img src="https://agentmods.dev/badge/instructions/hampsterx/claude-mcp-bridge/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/hampsterx/claude-mcp-bridge/agents-md"><img src="https://agentmods.dev/badge/instructions/hampsterx/claude-mcp-bridge/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.02487 | $0.02487 |
| Opus 5 | $0.01243 | $0.01243 |
| Sonnet 5 | $0.00497 | $0.00497 |
| Haiku 4.5 | $0.00249 | $0.00249 |
Grade A, and why
claude-mcp-bridge AGENTS.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 171 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md - claude-mcp-bridge
Guidance for AI coding agents working in the claude-mcp-bridge repository.
This file defines repository-specific operating rules for autonomous or semi-autonomous coding agents. Follow these instructions unless a maintainer explicitly tells you otherwise.
Project Overview
Open source MCP server that wraps Claude Code CLI as a subprocess, exposing code execution, web search, and structured output as MCP tools. Works with any MCP-compatible client: Codex CLI, Gemini CLI, Cursor, Windsurf, VS Code.
- npm package:
claude-mcp-bridge - License: MIT
- Language: TypeScript
- Framework:
@modelcontextprotocol/sdk
Architecture
MCP Client --stdio--> claude-mcp-bridge --spawn--> claude CLI subprocess
Prompts are assembled in TypeScript and spawned via the Claude Code CLI. Auth determines the spawn flags: API-key auth (CLAUDE_BRIDGE_USE_API_KEY=1) uses --bare for maximum isolation (skips hooks, memory, plugins, CLAUDE.md loading); subscription auth (the default) runs non-bare so the CLI can resolve OAuth tokens, with --setting-sources "" preventing project settings from leaking into the subprocess. See DESIGN.md § Subprocess Spawning and SECURITY.md § Isolation by Auth Mode. The search tool loads its prompt template from prompts/*.md via src/utils/prompts.ts and fills placeholders.
Code review is not a bridge tool. Use Claude Code's built-in /review family in-session, or invoke claude -p directly with the hardened isolation flags documented in README § Code review with this CLI. Rationale: ADR-001.
Tools
| Tool | Purpose | Default Timeout |
|---|---|---|
query |
Execute prompts with file context, session resume, budget control | 60s (text) / 120s (images) |
search |
Web search via Claude CLI WebSearch/WebFetch tools | 120s |
structured |
JSON Schema validated output via --json-schema |
60s |
listSessions |
List active sessions with cumulative cost and turn counts | instant |
ping |
Health check + CLI capability detection | 10s |
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 8d ago First seen · 171 lines · 2,487 tokens per session scan A 47012fc2a354
claude-mcp-bridge AGENTS.md is an instructions file published in the GitHub repository hampsterx/claude-mcp-bridge (6 stars, last pushed 1mo ago), licensed MIT. It adds 2,487 tokens to every session, about $0.0124 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other instructions, from other repositories
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.